I see talk here about having to work 7 days a week. This is just nuts.
While I can see it would be easily possible to work a set schedule if you specialize in one species, that type of schedule does not "fit" in urban wildlife control. We are in a service business, and in many cases it requires immediate response. I often feel like I'm running the ER in a hospital.... when a coon falls through a ceiling tile at 2 AM on Saturday morning, you don't tell the caller you will see them on Monday morning. Same as a snake in the house on Sunday afternoon... they are not going to wait for a solution. I know there are guys who "pass" on weekend calls or shut the phone off, but this type of service is not one that fits set hours. We must often operate on the animals schedule, which is 24/7.
States like mine (IL) have daily trap check laws, and if I'm solving an animal problem for a client I will not pick my traps up for the weekend. I will follow through on the job regardless of what day of the week it happens to be. Sure, if I have a bunch of mole jobs going I can wait a couple days to check (trap-check law doesn't apply to moles), but when I'm getting squirrels or raccoons out for a home builder, commercial customer, or just an ordinary homeowner I am going to perform the trapping program and any repairs/exclusion regardless of what day of the week it is.
The "per animal" thing is definitely a carry-over thought from fur trapping.... and I dropped that type of pricing 15 years ago. We are providing a professional service, not hobby trapping. Would a roofer charge "by the shingle" to remove and replace a roof? No... they figure the time (maybe using per square as a basic guideline) and add labor, misc materials, travel, etc. Same way I figure jobs.... by the job. The issue of pricing has so many variables.... and there is certainly a big difference between rural jobs (predator control or muskrat/beaver removal) and urban work.